Chemical container



Dec. 24, 1929.

A. w. THOMPSON CHEMICAL CONTAINER Filed oct. 21, 1924 WITNESSES:

Patented Dec. 24, 1929 UNITED STATES PATENT OFFICE ARTHUR W. THOMPSON, OF EAST MCKEESPORT, PENNSYLVANIA, ASSIGNOR T0 WEST- ING-HOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENN- SYLVANIA CHEMICAL CONTAINER My invention relates to electrical translating devices having an inert atmosphere confined above the fluid level therein, and particularly to chemical containers for removably housing the chemical compounds employed in such electrical translating de vices.

One object of my invention is to provide a chemicalcontainer that shall be adapted for ready insertion into, and removal from, apparatus for supplying an inert atmosphere in electrical translating devices.

Another object of my invent-ion is to provide a chemical container that shall have provision for circulating gas through the chemicals contained therein.

A further object of my invention is to provide a chemical container for a plurality of separate chemical compounds that shall be adapted for passing gas through one of the chemicals contained therein only or through a plurality of such chemicals in series relation,

In electrical translating devices, such as circuit interrupters and transformers, in which an inert atmosphere is maintained above the level of an insulating Huid, it has been found most satisfactory to supply factory-iillcd cartons containing the proper quantities of chemical compounds that may be easily inserted into the electrical translating devices at the places where such devices are in use.

In the accompanying drawings,

Figure 1 is a plan view of a chemical container embodying my invention.

Fig. 2 is a View, partially in elevation and partially in sect-ion, taken along the section line II-II of Fig. 1.

Fig. 3 is a fragmentary sectional view of my improved chemical container taken along the section line III-III of Fig. 1.

My invention comprises, in general, a container 1 in which a plurality of chemicals 2 and 3 are separated by partitions t and 5 in such manner that a gas space 6 is left between the chemicals for co-operation with a tube 7 for creating circulating atmosphere through the chemical compound 2.

The container 1 is preferably of a transparent material, such `as a glass jar, in order that the condition of the chemical compound may be observed. The chemical compound 2 is known as a deoXidizer for the reason that it removes oxygen from the gas circulating therethrough. Before being oxidized, the color of the chemical compound is brown but, after oxidization, it turns to a robins` egg blue color, with a very distinct color line separating the used from the unused vmaterial. Accordingly, with a transparent container, an operator is enabled, at a glance, to tell the chemical condition of the compound. The composition of the deoxidizer is as follows:

, Per cent by weight Copper scale, finely ground 58 Kieselguhr (filter cel) 8 Ammonium chloride 25 Calcium chloride and water 9 The chemical compound 3 is preferably calcium chloride or some other chemical having an affinity for water in order to absorb moisture from gases passing therethrough. The chemical compound 2 is confined by the partition 4, the latter being provided with a plurality of perforations 8 for the purpose of permitting gas to pass from the chemical compound 2 to the gas space 6.

The partition 5 is provided with an upstanding cylindrical lug 11 that terminates in a threaded portion l2 to co-operate with a cap 13 and a washer 14 for providing a gas outlet from the gas space 6 upon the removal of the cap 13. The partition 5 is also provided with an annular iiange 15 that is provided with a plurality of outwardly-extending ears 16 for co-operation with the walls of the casing 1 in supporting the partition 5 and the chemical 3. A cover 17 is placed above the chemical 3 for confining thx'e latter.

The cover 17 is provided with a plurality of outlets 18 and 19, somewhat similar in construction to the outlet 11, for permitting the circulation of gas through the chemical 3. Outlets 18 and 19 extend downwardly to different depths in the. chemical4 3 in order to insure a circulation of air through the chemical compound. A porous strip of material roo l Q0 extends from the outlet 18 into the chemical compound 3 in order to insure a more luniform consumption of the chemical compound. A suitable sealing compound 21 is run between, the flange 15 and the casing l and between the cover 17, thefiange 15 and outlet in order to render the container air tight. The edges of the partition are likewise sealed to the container 1. 'The sealingcompound'is preferably of an acid-resisting material having an asphalt base, such as numerous compounds used in eonnection'with storage batteries. The outer portion is a soft easily fusible material while the inner portion is a harder material. The outer portion effectively seals the container 1 while the inner portion keeps the softer material from the chemical.

The tube 7 is preferably of lead and extends outwardly to an outlet 22 that is similar in structural details to the outlet 1l. T he tube 7 is surrounded by the sealing compound- 21 where the former passes through the partitions et and 5 and it is also separated from the chemical compound z2 by a coating of the sealing compound 21. By coating the tube 7, throughout its entire length, with the scaling compound 21, the tube is protected. from the chemical action of the deoxidizer 2 and, at the same time, it is maintained'in its proper position relative to the container 1. The lower end of tube 7 extends inwardly, as at E23, to approximately the center of the container and adjacent to the bottom thereof. The end 23 of the tube is immediately surrounded by a porous material f2-l, such as asbestos wool, in order that entering the container therethrough may be more uniformly distributed to the chemical compound 2. A brass screen 25 is interposed between the asbestos wool 24 and the chemical compound 2 in order to confine the asbestos wool.

Vhen it is desired to utilize the chemicals contained in the casing 1, the caps from out lets 11 and 22 are removed and suitable unions are attached to the threads 12, for connection to the electrical translating device in service. Upon the connection of the outlets 11 and 22 to a suitable pipe network, such as is shown in the copending application of Leland H. Hill, Serial No. 753,836, tiled Dec. 4, 1924, and assigned to the \Vestinghouse Electric &,Manufacturing Company. gas eir- Culates downwardly through the tube T, the asbestos wool Q4, the deoxidizing chemical 2, the perforations 8 in the partition 4, the gas space 6 and the outlet 11. Expansion of the chemical compound 2 in use is cared for by the breaking of the sealing compound 21 bythe partition 4, which moves upi Yardly into the gas space 6, rather than causing the bursting or distortion of the container 1.

If it`is desired to subject the to a drying action, the caps are removed from the outlets 18 and 19 and connection made to a pipe system, such asis disclosedjntlie aforementioned Hill application, and the gases may be passed through the dehydrating chemi -al 3 after having passed through the deoxidizing chemicalQ. y It is `to be understood, however, thatthe manner 1n vwhich the gases are conducted externally ofthe con- 'y It will thus be seen that I haveproi'ideid chemical container that` is transparent, in which a. plurality ofchemicals .are'held in mechanical separation and, at thesame time, av gas may be made to circulate through one or both of the chemicals b vmaking proper external connections ,to the container. My chemical container is ofrsuchshape that it are so seal-ed in that danger of their being contaminated by being exposed to the atmosphere during shipment is avoided. y

I do not wish to be restricted tothe spe'- cilic arrangement of parts herein set forth. as 'arious nlodificationsthereof may be effected without departing from `the spirit and scope of my invention. I desire therefore, that only such limitations shall be imposed as are in dicated inthe appended claims'.

I claim as my invention: y

1. A chemical container comprising a plurality of perforated partitions for.` sub-dividing the jar into compartments, a tube extend-- ing downwardly througli the partitions from the exterior of the casing to the bottonrthereof, a sealing compound surrounding the tube, and a body of porous material surrounding the inner end of the tube.,

Q. A chemical cont-ainercomprising a jar,`

a. plurality1 of perforated partitions for subdividing the container into compartments, a` tube extending from the exterior of the jar,

to the bottom and center thereof, a sealing compound surrounding the tube, and a body of porous material occupying the lower central portion of the container jar surrounding the inner end of the tube.

3. A chemical container comprising a plurality of perforated partitions for sub-dividing the container into compartments. a chemical compound in the lower compartment, a tube extending downwardly from the exterior of the container to the bottom and center thereof, a sealing compound surrounding the tube, a body of porous material occupying the lower central portion of the container surrounding the inner end of the tube, and a screen for separating the porous material from the adjacent chemical compound. y

4. A chemical container con'lprising aplurality of perforated partitions for sub-dividing the container into compartments, a chem-` ical compound in the lower compartment, a

may be readily shipped, and the chemicals iframes tube extending downwardly from the exterior ot the container to the bottom thereof, a sealing compound surrounding the tube, a body of porous material surrounding the inner end ot the tube, and a screen tor separating the porous material trom the adjacent chemical compound.

5. ln a chemical container, a casing, a perforated partition disposed therein, a chemical compound confined by the partition, a tube extending upivariilly Jfrom the bottom of the chemical compound through the partition to the exterior ot the casinppand a second par tition spaced slightly above the irst partition thereby defining a lQgas space, the second partition being' provided with an upwardlyextending outlet from the gas space to the air whereby a gas may be passed through the chemical compound.

G. 'in a chemical container, a casing, a perforated partition disposed therein, a Chemical compound confined by the partition, a tube extending: trom the bottom ot" the chemical compound through the partition to the exterior ot the casing, a second partition spaced slightly above the first partition thereby dei'ininuj a nas space, the second partition being provided with an outletfrom the gras space t`o the air, a second chemical compound supported by the second partition, a cover member "for confining' the second chemical and a sealing;` compound tor securing the casing' tube, eoyer member and partitions in gas-tight engagement. whereby a movement of gas may 1 be vcreated through the irst chemical compound only. l

'i'. in a chemical container, a casing, a peri'orated partition disposed therein, a chemical compound coniined by the partition, a tube extending` Yfrom the bottom of the ehemieal compound through the partition to the eX- 'terior ot the casing, a second partition spaced slightly above the lirst partition thereby delininfg; a Ajas space, the second partition being provided with an outlet from the gas space to the air, a second compound supported by the second partition, a cover member for contininp; the second chemical compound, the cover member being provided with a plurality of outlets, communicating with the second cheniieal compound, and a sealing compound tor securing the casing', tube, cover member and partitions in gas-tight engagement, whereby a movement ot may be created through the lirst chemical only, or through the first and second chemicals in series relation.

lin testimony whereof, l have hereunto subscribed my name this irst day ot October,

ARTHUR W. THOMPSON. 

